Researchers from Denmark have calculated the relative ages of the Earth’s surface relative to its core and found that the nucleus is 2.5 years younger than the cortex. In their study published in the European Journal of Physics, researchers describe the mathematics involved in their work and their results.
During one of his famous lectures at Caltech in the 1960s, Richard Feynman observed that because of the expansion of time, the Earth’s core is actually younger than the bark, a difference he has probably calculated a day or two. Since then, physicists have accepted both the notion that the nucleus is younger than the surface, at the time given by Feynman, without checking mathematics.
General relativity shows that really large objects, such as planets and stars, distort space-time, which leads to a gravitational pull that slows down time. Thus, an object closer to the center of the Earth will be more strongly attracted.
A clock close to the kernel will run slower than a clock placed on the surface, which means that the material that composes the kernel is actually newer than the material that composes the bark. Such curiosity has long been seen in physics, as well as the degree of time difference that Feynman put in his speech.
In the new study, however, the researchers made the maths to find out the actual number of time difference. They found that during the 4.5 billion-year history of our planet’s planet, the nucleus of our planet is 2.5 years younger than the bark due to the pull of gravity.
The findings of the study serve not only as an example of the effect of gravity on time, but also of the problems that may arise when scientists take the words of their famous colleagues in cash simply because of their prestige. No one should be over the review, which, many who knew Feynman can assert was one of his principles.